Remove '.' in expected warning

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54051 91177308-0d34-0410-b5e6-96231b3b80d8

test/Analysis/unused-ivars.m

@@ -2,7 +2,7 @@
 
 @interface A
 {
-  @private int x; // expected-warning {{Instance variable 'x' in class 'A' is never used.}}
+  @private int x; // expected-warning {{Instance variable 'x' in class 'A' is never used}}
 }
 @end